相关疑难解决方法(0)

我在尝试获取JSON请求并处理它时收到以下错误:

org.codehaus.jackson.map.JsonMappingException:找不到类型[simple type,class com.myweb.ApplesDO]的合适构造函数:无法从JSON对象实例化(需要添加/启用类型信息？)

这是我要发送的JSON:

{
  "applesDO" : [
    {
      "apple" : "Green Apple"
    },
    {
      "apple" : "Red Apple"
    }
  ]
}

在Controller中,我有以下方法签名:

@RequestMapping("showApples.do")
public String getApples(@RequestBody final AllApplesDO applesRequest){
    // Method Code
}

AllApplesDO是ApplesDO的包装器:

public class AllApplesDO {

    private List<ApplesDO> applesDO;

    public List<ApplesDO> getApplesDO() {
        return applesDO;
    }

    public void setApplesDO(List<ApplesDO> applesDO) {
        this.applesDO = applesDO;
    }
}

ApplesDO:

public class ApplesDO {

    private String apple;

    public String getApple() {
        return apple;
    }

    public void setApple(String appl) { …